Explanipedia

Quench rate dependence of center formation in Er implanted Si Open

Mark Hughes, Huan Liu, Yaping Dan · 2025

Er implanted Si (Er:Si) is a promising candidate for scalable planar quantum memory (QM) applications. Er has a preference to coordinate with O impurities, and multiple types of Er center are typically formed after a post implant anneal. F…

Sketch and Peel Focused Ion Beam Patterning of Black Phosphorus for Mid‐Infrared Photonics Open

Huan Liu, Anders J. Barlow, Alexander Corletto, Christopher R. Hall, James Bullock , et al. · 2025

Black phosphorus (BP) is an important mid‐infrared semiconductor, having a direct bandgap from monolayer (≈1.7 eV) to bulk (≈0.31 eV) thicknesses. The ability to nanopattern BP could enable new optoelectronic devices. However, existing nan…

Photon emission gain in Er doped Si light emitting diodes by impact excitation Open

Huayou Liu, Jinwei Zhao, Jing Zhang, Huan Liu, Jiajing He , et al. · 2025

This work demonstrates photon emission gain, i.e., emission of multiple photons per injected electron, through impact excitation in Er-doped silicon light-emitting diodes (LEDs). Conventional methods for exciting Er ions in silicon suffer …

Defects in graphite engineered by ion implantation for the self-assembly of gold nanoparticles Open

Yumeng Liu, Yanhao Deng, Yizhuo Wang, Wang Li, Tong Liu , et al. · 2024

Defect engineering in two-dimensional (2D) materials is essential for advancing applications such as gas sensing, single-atom catalysis, and guided nanoparticle self-assembly, enabling the creation of materials with tailored functionalitie…

GaAs doped by self-assembled molecular monolayers Open

Zhengfang Fan, Yumeng Liu, Y G Wang, Shuwen Guo, Liping He , et al. · 2024

Self-assembled molecular monolayer doping remains as a research focus for its nature of being conformal, nondestructive, and self-limiting. Herein, we demonstrate a sulfur monolayer doping in GaAs, facilitated by (NH4)2Sx solution. The Van…

Reproducible Monolayer MoS2 Devices Free of Resist Contamination by Gold Mask Lithography Open

Yumeng Liu, Yizhuo Wang, Zhengfang Fan, Jianyong Wei, Shuwen Guo , et al. · 2024

Atomically thin MoS2 is a promising material for field-effect transistors (FETs) and electronic devices. However, traditional photolithographic processes introduce surface contamination to 2D materials, leading to poor electrical contacts …

Rapid quench annealing of Er implanted Si for quantum networking applications Open

Mark Hughes, Huan Liu, Adam Brookfield, Tianrui Wang, Iain F. Crowe , et al. · 2024

Erbium-implanted silicon (Er:Si) holds promise for quantum networking, but the formation of multiple Er centers poses a challenge. We show that the cubic center (Er-C) has C 2v or lower symmetry and propose all Er centers range between ful…

Cover Image Open

Yance Chen, Yue Dai, Srikrishna Chanakya Bodepudi, Xinyu Liu, Yuan Ma , et al. · 2024

A silicon‐integrated MXene X‐ray detector exhibits high sensitivity and an ultra‐low detection limit, enabling clear and precise single‐pixel X‐ray imaging image

Rapid quench annealing of Er implanted Si for quantum networking applications Open

Mark Hughes, Huan Liu, Adam Brookfield, Tianrui Wang, Iain F. Crowe , et al. · 2024

Erbium-implanted silicon (Er) holds promise for quantum networking, but the formation of multiple Er centres poses a challenge. We show that the cubic centre (Er-C) has C2v or lower symmetry, with Er centres ranging from fully Si- to fully…

Rapid quench annealing of Er implanted Si for quantum networking applications Open

Mark Hughes, Huan Liu, Adam Brookfield, Tianrui Wang, Iain F. Crowe , et al. · 2024

Erbium-implanted silicon (Er) holds promise for quantum networking, but the formation of multiple Er centres poses a challenge. We show that the cubic centre (Er-C) has C2v or lower symmetry, with Er centres ranging from fully Si- to fully…

Rapid quench annealing of Er implanted Si for quantum networking applications Open

Mark Hughes, Huan Liu, Adam Brookfield, Tianrui Wang, Iain F. Crowe , et al. · 2024

Erbium implanted silicon (Er:Si) is a promising platform for quantum networking applications, but a major obstacle is the formation of multiple Er centres. We show that the previously identified cubic centre (Er-C) has C2v or lower symmetr…

High Performance MoS2 Phototransistors Photogated by PN Junction Open

Seyed Saleh Mousavi Khaleghi, Jianyong Wei, Yumeng Liu, Zhengfang Fan, Kai Li , et al. · 2024

Photodetectors based on two-dimensional (2D) atomically thin semiconductors suffer from low light absorption, limiting their potential for practical applications. In this work, we demonstrate a high-performance MoS2 phototransistors by int…

High‐sensitive and fast <span>MXene</span>/silicon photodetector for single‐pixel X‐ray imaging Open

Yance Chen, Yue Dai, Srikrishna Chanakya Bodepudi, Xinyu Liu, Yuan Ma , et al. · 2024

The demand for high‐performance X‐ray detectors leads to material innovation for efficient photoelectric conversion and carrier transfer. However, current X‐ray detectors are often susceptible to chemical and irradiation instability, compl…

Analytical photoresponses of Schottky contact MoS2 phototransistors Open

Jianyong Wei, Yumeng Liu, Yizhuo Wang, Kai Li, Zhentao Lian , et al. · 2024

High-gain photodetectors based on two-dimensional (2D) semiconductors, in particular those in photoconductive mode, have been extensively investigated in the past decade. However, the classical photoconductive theory was derived on two mis…

Probing the band splitting near the $Γ$ point in the van der Waals magnetic semiconductor CrSBr Open

Kaiman Lin, Yi Li, Mahdi Ghorbani‐Asl, Zdeněk Sofer, Stephan Winnerl , et al. · 2024

This study investigates the electronic band structure of Chromium Sulfur Bromide (CrSBr) through comprehensive photoluminescence (PL) characterization. We clearly identify low-temperature optical transitions between two closely adjacent co…

Analytical photoresponses of gated nanowire photoconductors Open

Yinchu Shen, Jiajing He, Xu Yang, Kaiyou Wang, Yaping Dan · 2024

Low-dimensional photoconductors have extraordinarily high photoresponse and gain, which can be modulated by gate voltages as shown in literature. However, the physics of gate modulation remains elusive. In this work, we investigated the ph…

Near-infrared and mid-infrared light emission of boron-doped crystalline silicon Open

Xiaoming Wang, Jiajing He, Yaping Dan · 2024

The bottleneck in achieving fully integrated silicon photonics lies in silicon-based light-emitting devices that are compatible with standard CMOS technology. Dislocation loops created by implanting boron into silicon and annealing represe…

Strong Exciton–Phonon Coupling as a Fingerprint of Magnetic Ordering in van der Waals Layered CrSBr Open

Kaiman Lin, Xiaoxiao Sun, Florian Dirnberger, Yi Li, Jiang Qu , et al. · 2024

The layered, air-stable van der Waals antiferromagnetic compound CrSBr exhibits pronounced coupling among its optical, electronic, and magnetic properties. As an example, exciton dynamics can be significantly influenced by lattice vibratio…

Near-infrared and Mid-infrared Light Emission of Boron-doped Crystalline Silicon Open

Xiaoming Wang, Jiajing He, Yaping Dan · 2024

The bottleneck in achieving fully integrated silicon photonics lies in silicon-based light-emitting devices that are compatible with standard CMOS technology. Dislocation loops by implanting boron into silicon and annealing represents an e…

Analytical impact excitation of Er/O/B co-doped Si light emitting diodes Open

Xiaoming Wang, Jiajing He, Ao Wang, Kun Zhang, Yufei Sheng , et al. · 2024

Er doped Si light emitting diodes may find important applications in the generation and storage of quantum information. These diodes exhibit an emission efficiency two orders of magnitude higher at reverse bias than forward bias due to imp…

Validation of minority carrier recombination lifetimes in low-dimensional semiconductors found by analytical photoresponses Open

Kai Li, Yinchu Shen, Zhijuan Su, Yaping Dan · 2024

It is a formidable challenge to find the minority carrier recombination lifetime in low-dimensional devices as low-dimensionality increases the surface recombination rate and often reduces the recombination lifetime to a scale of picosecon…

High-performance plasmonic mid-infrared bandpass filters by inverse design Open

Jiarui Zhang, Zeji Chen, Zhijuan Su, Yaping Dan · 2024

Plasmonic spectral filters composed of periodic nanostructured metal films offer novel opportunities for the development of multispectral imaging technologies in the mid-infrared region. However, traditional plasmonic filters, which typica…

Analytical Gas‐Sensing Responses for Single‐Crystalline Semiconducting Gas Sensors (Adv. Sensor Res. 12/2023) Open

Huan Liu, Zehuan Li, Kai Li, Yaping Dan · 2023

Analytical Gas Response In article 2300071, Huan Liu, Zehuan Li, Kai Li, and Yaping Dan establish an analytical gas response formula for chemiresistive gas sensors. Temkin isotherm model is applied to predict the density of adsorbed molecu…

Strong Exciton-Phonon Coupling as a Fingerprint of Magnetic Ordering in van der Waals Layered CrSBr Open

Kaiman Lin, Xiaoxiao Sun, Florian Dirnberger, Yi Li, Jiang Qu , et al. · 2023

The layered, air-stable van der Waals antiferromagnetic compound CrSBr exhibits pronounced coupling between its optical, electronic, and magnetic properties. As an example, exciton dynamics can be significantly influenced by lattice vibrat…

Analytical Gas‐Sensing Responses for Single‐Crystalline Semiconducting Gas Sensors Open

Huan Liu, Zehuan Li, Kai Li, Yaping Dan · 2023

In this study, an analytical gas response formula is developed based on the classical gaseous molecule adsorption model. To validate the analytical formula, an array of silicon nanowires or microwires is fabricated by patterning the device…

Hfo2-Based Rram with In-Situ Conductive Channels Induced by Nanoparticles to Improve Stability Open

Jinyan Pan, Hongyang He, Yaping Dan, Yuxiang Lin, Shuya Yang , et al. · 2023

Design of an optical slot waveguide amplifier based on Er3+-doped tellurite glass Open

Ning Wei, Xiao‐Bo Li, Jiajing He, Yongtao Fan, Yaping Dan , et al. · 2022

The idea of a slot waveguide amplifier based on erbium-doped tellurite glass is first theoretically discussed in this work. Choosing the horizontal slot for low propagation loss, the TM mode profile compressed in the insertion layer was si…

De-carbonization of self-assembled molecular monolayers doping in silicon Open

Shannan Chang, Chufan Zhang, Kai Li, Yaping Dan · 2022

Unintentional C-related contamination can be readily introduced into the substrate in self-assembled molecular monolayer doping. These C contaminants can bind with dopants, forming interstitial defects, which will in return electrically de…

Nonlinear absorption and integrated photonics applications of MoSSe Open

XIAOBO LI, Xin Chen, Ning Wei, Chenduan Chen, Zhan Yang , et al. · 2022

This study explores the wavelength-dependent and pulse-width-dependent nonlinear optical properties of liquid-phase exfoliated molybdenum sulfide selenide (MoSSe) nanosheets. The saturable absorption response of MoSSe nanosheets in the vis…

Fluorine‐Enhanced Room Temperature Luminescence of Er‐Doped Crystalline Silicon Open

Xiaoming Wang, Jiajing He, Shenbao Jin, Huan Liu, Hongkai Li , et al. · 2022

The silicon‐based light‐emitting devices are the bottleneck of fully integrated silicon photonics. Doping silicon with erbium (often along with oxygen) is an attractive approach to turn silicon into a luminescent material, which has been e…

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